The nation paused last week to remember the victims of a shooting spree in Arizona. At a memorial in Tuscon, President Obama urged all Americans to use the tragedy as a reason to expand our moral imagination …to talk to each other in a way that heals rather than wounds. Police portrayed the alleged shooter as mentally unstable with no political ties. But the attempted assassination of a member of Congress brought attention to the rise of partisan rancor in recent years. Many lawmakers are now calling for a more civil tone in our political debates. We invite you to share your ideas on how to encourage civility in our communities.